1. UNIT 1
PLATE TECTONICS

3. COMPOSITIONAL AND PHISICAL LAYERS

4. DENSITY AND TEMPERATURE VARIATION IN DEPTH
Temperature

5. TYPES OF SEISMIC WAVES

6. SEISMOMETER AND
SEISMOGRAM

7. EXPLORING THE INTERIOR WITH SEISMIC WAVES

8. SEISMIC WAVES VARIATION IN DEPTH

9. PANGEA

10. CONTINENTS POSITION
THROUGH EARTH’S HISTORY

11. GEOLOGICAL EVIDENCES
Same rocks and
structures on each side
of the Atlantic ocean
Continents fit together
along the continental
shelves

12. PALEOCLIMATIC EVIDENCE
Glacial moraines in
tropical regions
Wegener’s explanation

13. PALEOLITHIC EVIDENCES

14. CONTINENTS EVOLUTION

15. SEISMIC AND VOLCANIC BELTS

16. PLATE TECTONICS

17. PLATE BOUNDARIES FEATURES

18. TYPES OF PLATES BOUNDARIES

19. PLATES MOVEMENTS
Divergent
boundaries
Convergent
boundaries
Transform
boundaries

20. TYPES OF SUBDUCTION BOUNDARIES

21. OCEAN FLOOR LANDFORMS

22. OCEAN FLOOR COMPOSITION

23. SEA FLOOR SPREADING

25. PLATE MOVEMENTS EXPLANATION

26. CONVENCTION CURRENTS